Replacement PTO Clutch and Wiring Harness for Warner 5219-171, 5219171, 5219-177, 5219177 Lawn Mowers Features – Inside Diameter: 1″. Pulley Diameter: 6″. Rotation Direction: Counter-Clockwise. Belt Width: 1/2″ or 5/8″. See Images 2 and 3 for more information. Kit includes: (1) Electric PTO Clutch, (1) High Temperature Bearing, (1) Machined Pulley, (1) Stainless Steel Rivet, and (1) Wiring Harness and comes as shown in first image. Clutch contains a pre-installed keyway; however, modification to the existing keyway may be required for successful installation.